Russian Journal of Physical Chemistry A

, Volume 86, Issue 4, pp 635–638

Adsorption isotherms of linoleic and linolenic acids from solutions in carbon tetrachloride on surfaces of highly dispersed manganese and copper ferrites

  • O. V. Balmasova
  • V. V. Korolev
  • A. G. Ramazanova
Physical Chemistry of Surface Phenomena

DOI: 10.1134/S0036024412040036

Cite this article as:
Balmasova, O.V., Korolev, V.V. & Ramazanova, A.G. Russ. J. Phys. Chem. (2012) 86: 635. doi:10.1134/S0036024412040036

Abstract

A comparative study of adsorption-desorption isotherms of linoleic and linolenic acids from solutions in carbon tetrachloride on surfaces of manganese and copper ferrites is performed by means of equilibrium adsorption. Adsorption isotherms of fatty acids are described in terms of the theory of volume filling of micropores, and the values of the limiting adsorption, the characteristic adsorption energy, and the pore space volume are calculated. It is established that the limiting adsorption values of linoleic and linolenic acids from solutions in carbon tetrachloride on a copper ferrite surface are higher than on a manganese ferrite surface. It is shown that the adsorption-desorption isotherms have a hysteresis loop.

Keywords

adsorption isothermslinoleic acidlinolenic acidcarbon tetrachloridemanganese and copper ferrites

Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • O. V. Balmasova
    • 1
  • V. V. Korolev
    • 1
  • A. G. Ramazanova
    • 1
  1. 1.Institute of Solution ChemistryRussian Academy of SciencesIvanovoRussia